For the orthographic projection as a map projection, see Orthographic projection in cartography. For mathematical discussion in terms of linear algebra, see Projection (linear algebra).
Bullfrogs are the largest real frog found in North America, weighing up to 0.5 kg and measuring 460 mm in length. Their average length is 100-175 mm. Their color varies from brownish to shades of green, often with spots or blotches of a darker color around their backs. Their back feet are fully webbed.
Bullfrogs are one of the most common and prominent amphibians in all of North America. Originally found only in the eastern part of the North American continent, from Canada all the way down to Florida, the species now exists â and thrives â in all forty-eight states of the United States and in most of Canada, as well.